流量统计菜单下所有菜单包含包总量和字节总量的列表：

增加两列pps 与 bps

src/main/java/com/nis/util/DateUtils.java

@@ -188,6 +188,20 @@ public class DateUtils extends org.apache.commons.lang3.time.DateUtils {
 		long afterTime = after.getTime();
 		return (afterTime - beforeTime) / (1000 * 60 * 60 * 24);
 	}
+	
+	/**
+	 * 获取两个日期之间的秒数
+	 * 
+	 * @param before
+	 * @param after
+	 * @return
+	 */
+	public static double getSecondsOfTwoDate(Date before, Date after) {
+		long beforeTime = before.getTime();
+		long afterTime = after.getTime();
+		return (afterTime - beforeTime) / (1000);
+	}
+	
 	/**
 	 * 
 	 *